What is ISO in photography / digiscoping? Lions in Kruger National Park, South Africa

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Essentially, ISO as a camera function describes how sensitive the sensor is to the light that it receives. This means that a high ISO number means that the sensor very quickly gathers information…

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SWAROVSKI OPTIK Nature says:

Hi Chris, I happen to just be using the stock-standard Canon 18-55mm zoom;
it works quicte well on the UCA adapter with a small DSLR, but because it
is rather long, if one wants to use a larger DSLR then it is a very good
idea to go for a pancake lens or at least something like the 50mm f1.8.

username1988ful says:

nice !!

Adrian Moreno says:

my teacher thought me this but i forgot it….but now i know thanks 4 the
recap :D!

bratvlad says:

So far away from lions :D

SWAROVSKI OPTIK Nature says:

@ctkallday666, not camera speed, but film speed. In the same light
conditions, you could take a faster photo with ISO800 film than ISO100
film, but you have a compromise in graininess. Your t50 should always be
set to the ISO value of the film you have in the camera. With a DSLR,
however, one does not have physical film but/so can vary ISO as one wishes,
according to what noise/speed compromise you are willing to make at that
moment.

idro2k says:

Am I the only one who disagrees ? ISO is NOT the speed of exposure though
it can influence it! ISO is sensitivity to light, So obviously the more
light in the picture the the more the camera needs to compensate for it.

SWAROVSKI OPTIK Nature says:

@idro2k, at the time we made the video, we were trying to focus more on the
effect for digiscoping specifically than a detailed explanation; which is
why we chose to keep the video simple and start the text explanation with
“Essentially, ISO as a camera function describes how sensitive the sensor
is to the light that it receives. This means that a high ISO number means
that the sensor very quickly gathers information (i.e. allows me to use a
fast shutter speed) …”

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